2203013021 has 4 divisors (see below), whose sum is σ = 2403286944. Its totient is φ = 2002739100.

The previous prime is 2203013011. The next prime is 2203013069. The reversal of 2203013021 is 1203103022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2203013021 - 2⁶ = 2203012957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203012987 and 2203013005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203013011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100136945 + ... + 100136966.

It is an arithmetic number, because the mean of its divisors is an integer number (600821736).

Almost surely, 2^2203013021 is an apocalyptic number.

It is an amenable number.

2203013021 is a deficient number, since it is larger than the sum of its proper divisors (200273923).

2203013021 is a wasteful number, since it uses less digits than its factorization.

2203013021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200273922.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2203013021 is about 46936.2655203841. The cubic root of 2203013021 is about 1301.1849198422.

Adding to 2203013021 its reverse (1203103022), we get a palindrome (3406116043).

Subtracting from 2203013021 its reverse (1203103022), we obtain a palindrome (999909999).

It can be divided in two parts, 220301 and 3021, that added together give a palindrome (223322).

The spelling of 2203013021 in words is "two billion, two hundred three million, thirteen thousand, twenty-one".